Specification Brand : Melleco BulletPoint1 : 2pcs Dental Lab SILICA Quartz Zirconia Centrifugal Casting Crucible High Quality BulletPoint2 : Made of fused quartz and high quality zirconia. It will last through many casting jobs BulletPoint3 : Can be used more than 200 times by centrifugal casting machine, can be used about 20 times by high frenquency casting machine BulletPoint4 : Top Opening: 38mm Height: 76mm ExternallyAssignedProductIdentifier : 6912011537250 ItemName : Melleco Dental Lab Silica Quartz Zirconia Centrifugal Casting Crucibles ItemPackageQuantity : 1 ItemTypeKeyword : crucibles Manufacturer : GoNear ModelNumber : GN-GG-JSD-LS NumberOfItems : 2 PartNumber : GN-GG-JSD-LS ProductDescription : Description 100% New and High Quality. Made of fused quartz and high quality zirconia. It will last through many casting jobs Can be used more than 200 times by centrifugal casting machine, can be used about 20 times by high frenquency casting machine Suggested melting temperature to be no greater than 1371 degree celsius or 2500 degree fahrenheit